Version 1.1, Draft 3, Release Candidate

Merged core specification into single document.
Moved the <Param/> element and the <Url/> element's 'method' attribute to the OpenSearch parameter extension.
Added the 'indexOffset' and 'pageOffset' to the <Url/> element.
Replaced the OpenSearch <link/> element with the standard Atom <link/> element.

Version 1.1, Draft 2 (December 6 2005)

Unified XML namespace across core specifications.
Added section on autodiscovery.
Modified <Tags/> value to allow up to 256 characters.
Modified <Contact/> and <Tags/> elements to make them optional.
Modified <atom:link rel="..."/> values to match Atom specification.
Added <Query/> element.
Replaced <SampleSearch/> element in description with <Query role="example"/>.
Replaced <searchTerms/> element in response with <Query role="request"/>.

Updated XML namespaces to reflect the new version.
Moved information regarding host restrictions to query syntax specification.
Modified <Image/> element to allow multiple occurrences.
Added 'width', 'height', and 'type' attributes to <Image/> element.
Added <Language/>, <OutputEncoding/>, and <InputEncoding/> elements to description.
Added 'language', 'outputEncoding', and 'inputEncoding' as core search parameters.
Specified MIME type for description documents.
Specified extensibility mechanism for custom search parameters.
Added '?' modifier for search parameters.
Specified extensibility mechanism for description documents.
Specified use of <atom:link/> elements in response.
Added <searchTerms/> element to response.
Added 'template', 'type', and 'method' attributes to <Url/> element.
Added '<Param/> element to <Url/> element to support POST requests.
Modified <Url/> elements to allow multiple occurrences.
Removed <Format/>/code> element from description.

* Renamed OpenSearch RSS to OpenSearch Response. * Added support for Atom, HTML, and other response formats.

== Version 1.0 (March 15 2005) ==

* Released OpenSearch Description, OpenSearch Query Syntax, and OpenSearch RSS core specifications.